标准摘要
[中文适用范围]： 本文件规定了能够自动输送预设水量的容积阀的一般要求和测试方法。 它适用于仅由管道压力和流量驱动的阀门，不需要任何其他外部能源。 注： 容积阀通常需要在不同流量和 5 °C 至 50 °C 温度之间的不同质量的灌溉水下正确运行。 [外文原描述]： This document specifies general requirements and test methods for volumetric valves able to automatically deliver preset quantities of water. It is applicable to valves actuated by pipeline pressure and flow alone, and which do not need any other, external, source of energy. NOTE Volumetric valves are typically required to operate correctly with different qualities of irrigation water at a variety of flow rates and at temperatures between 5 °C and 50 °C.
英文名称Agricultural irrigation equipment — Volumetric valves — General requirements and test methods